During the GRE meeting last week, some major improvements were made to UNECE Regulations for lighting.
The failure detection criteria for microLEDs were made more sensible; no longer must a failure message be given if one of the 25,000 pixels has failed, and new driver assistance projections will be allowed for predicted trajectory with possibility to adapt the shape of the symbol.
But at the same time, the contracting parties to the 1958 Agreement (which enables the UN Regulations) failed to reach agreement to allow signalling road projection for reversing light and direction indicator light functions. So now more investigations must be done to address the points of concern. Most of them related to glare in wet road conditions, and the willingness to have a step-by-step approach for the turn indicator projection with only specific use cases first and then later open it to additional scenarios. GTB, with support from automakers, tier-1 and -2 suppliers, and test houses will have to continue their work to be able to put forth a new proposal at GRE 92 in April 2025.
Meanwhile, signalling projections with a very large scope will be allowed in China from July 2025; the final regulatory text should be released this month.
